M70.042 Crepitant synovitis (acute) (chronic), left hand

Billable ICD-10-CM code, FY2026.

Applies from M70 Soft tissue disorders related to use, overuse and pressure

Includes

• soft tissue disorders of occupational origin

Excludes1 (never code together)

• bursitis NOS (M71.9-)

Excludes2 (not included here)

• bursitis of shoulder (M75.5)
• enthesopathies (M76-M77)
• pressure ulcer (pressure area) (L89.-)

Use additional code

• external cause code to identify activity causing disorder (Y93.-)

MS-DRG index

Defines the logic of DRG(s) 557-558 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 727.2 Specific bursitides often of occupational origin (approximate)

Code annotations containing back-references to M70.042

Back-references to M70.0

• Type 1 Excludes: M65 Synovitis and tenosynovitis ("chronic crepitant synovitis of hand and wrist (M70.0-)")

Back-references to M70

• Type 1 Excludes: M65 Synovitis and tenosynovitis ("soft tissue disorders related to use, overuse and pressure (M70.-)")
• Type 1 Excludes: M71 Other bursopathies ("bursitis related to use, overuse or pressure (M70.-)")
• Type 2 Excludes: M76 Enthesopathies, lower limb, excluding foot ("bursitis due to use, overuse and pressure (M70.-)")
• Type 2 Excludes: M77 Other enthesopathies ("bursitis due to use, overuse and pressure (M70.-)")

Nearby codes

• M70.031 Crepitant synovitis (acute) (chronic), right wrist
• M70.032 Crepitant synovitis (acute) (chronic), left wrist
• M70.039 Crepitant synovitis (acute) (chronic), unspecified wrist
• M70.04 Crepitant synovitis (acute) (chronic), hand
• M70.041 Crepitant synovitis (acute) (chronic), right hand
• M70.042 Crepitant synovitis (acute) (chronic), left hand (this code)
• M70.049 Crepitant synovitis (acute) (chronic), unspecified hand
• M70.1 Bursitis of hand
• M70.10 Bursitis, unspecified hand
• M70.11 Bursitis, right hand
• M70.12 Bursitis, left hand